| 1. |
- Bill-Axelson, Anna, et al.
(författare)
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Radical prostatectomy versus watchful waiting in early prostate cancer.
- 2011
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Ingår i: The New England journal of medicine. - : Massachussetts Medical Society. - 1533-4406 .- 0028-4793. ; 364:18, s. 1708-17
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Forskningsöversikt (refereegranskat)abstract
- In 2008, we reported that radical prostatectomy, as compared with watchful waiting, reduces the rate of death from prostate cancer. After an additional 3 years of follow-up, we now report estimated 15-year results.
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| 2. |
- Kotronoulas, Grigorios, et al.
(författare)
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Sleep patterns and sleep-impairing factors of persons providing informal care for people with cancer : a critical review of the literature
- 2013
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Ingår i: Cancer Nursing. - 0162-220X .- 1538-9804. ; 36:1, s. E1-E15
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Forskningsöversikt (refereegranskat)abstract
- Background: Sleep is increasingly recognized as an area of functioning that may be greatly affected in persons who are practically and emotionally involved in the care of patients with cancer. Clinician awareness is required to ensure that effective care for informal caregivers with sleep problems is provided. Objective: A 2-fold critical review of the published literature was conducted, which aimed at summarizing and critically analyzing evidence regarding sleep patterns of informal caregivers of adults with cancer and contributing factors to sleep-wake disturbances. Methods: Using a wide range of key terms and synonyms, 3 electronic databases (MEDLINE, CINAHL, EMBASE) were systematically searched for the period between January 1990 and July 2011. Results: Based on prespecified selection criteria, 44 articles were pooled to provide evidence on sleep-impairing factors in the context of informal caregiving, 17 of which specifically addressed sleep patterns of caregivers of people with cancer. Conclusions: At least 4 of 10 caregivers may report at least 1 sleep problem. Short sleep duration, nocturnal awakenings, wakefulness after sleep onset, and daytime dysfunction seem to be the areas most affected irrespective of stage or type of disease, yet circadian activity remains understudied. In addition, despite a wide spectrum of potential sleep-impairing factors, underlying causal pathways are yet to be explored. Implications for Practice: More longitudinal, mixed-methods, and comparison studies are warranted to explore caregiver sleep disorders in relation to the gravity of the caregiving situation in the context of diverse types of cancer and disease severity.
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| 3. |
- Yavari, Nazila, et al.
(författare)
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An overview on preclinical and clinical experiences with photodynamic therapy for bladder cancer
- 2011
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Ingår i: Canadian Journal of Urology. - 1195-9479. ; 18:4, s. 5778-5786
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Forskningsöversikt (refereegranskat)abstract
- Photodynamic therapy (PDT) is one of the most interesting methods of photo treatment. In general, PDT is a modality for the treatment of non-muscle invasive tumors. PDT is very well suited in managing bladder cancer, as the bladder is accessible by endoscopy and the tumors are most often limited to the mucosa or sub-mucosa. PDT is likely more useful for patients with recurrent tumors after conventional therapies, as well as for patients with diffuse non-muscle invasive bladder carcinomas that are refractory to standard treatments before the commitment to radical extirpative surgery, particularly in patients at surgical high risk. The treatment of tumors with PDT includes three major parameters: presence of oxygen in tumor tissue, administration of a photosensitizer, and subsequent exposure to light. The PDT mechanism relies on the in situ generation of cytotoxic agents by the activation of a light-sensitive drug, resulting in cell death. In this review, we present past and current advances in the use of PDT with urinary bladder cancer and discuss the future roles for this type of therapy in the treatment of bladder cancer.
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| 4. |
- Behnam-Motlagh, Parviz, et al.
(författare)
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Verotoxin-1 Treatment or Manipulation of its Receptor Globotriaosylceramide (Gb3) for Reversal of Multidrug Resistance to Cancer Chemotherapy
- 2010
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Ingår i: Toxins. - Basel : MDPI. - 2072-6651. ; 2:10, s. 2467-2477
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Forskningsöversikt (refereegranskat)abstract
- A major problem with anti-cancer drug treatment is the development of acquired multidrug resistance (MDR) of the tumor cells. Verotoxin-1 (VT-1) exerts its cytotoxicity by targeting the globotriaosylceramide membrane receptor (Gb3), a glycolipid associated with multidrug resistance. Gb3 is overexpressed in many human tumors and tumor cell lines with inherent or acquired MDR. Gb3 is co-expressed and interplays with the membrane efflux transporter P-gp encoded by the MDR1 gene. P-gp could act as a lipid flippase and stimulate Gb3 induction when tumor cells are exposed to cancer chemotherapy. Recent work has shown that apoptosis and inherent or acquired multidrug resistance in Gb3-expressing tumors could be affected by VT-1 holotoxin, a sub-toxic concentration of the holotoxin concomitant with chemotherapy or its Gb3-binding B-subunit coupled to cytotoxic or immunomodulatory drug, as well as chemical manipulation of Gb3 expression. The interplay between Gb3 and P-gp thus gives a possible physiological approach to augment the chemotherapeutic effect in multidrug resistant tumors.
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| 5. |
- Swartling, Fredrik J., 1975-, et al.
(författare)
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Signals that regulate the oncogenic fate of neural stem cells and progenitors
- 2014
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Ingår i: Experimental Neurology. - : Elsevier BV. - 0014-4886 .- 1090-2430. ; 260, s. 56-68
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Forskningsöversikt (refereegranskat)abstract
- Brain tumors have frequently been associated with a neural stem cell (NSC) origin and contain stem-like tumor cells, so-called brain tumor stem cells (BTSCs) that share many features with normal NSCs. A stem cell state of BTSCs confers resistance to radiotherapy and treatment with alkylating agents. It is also a hallmark of aggressive brain tumors and is maintained by transcriptional networks that are also active in embryonic stem cells. Advances in reprogramming of somatic cells into induced pluripotent stem (iPS) cells have further identified genes that drive stemness. In this review, we will highlight the possible drivers of stemness in medulloblastoma and glioma, the most frequent types of primary malignant brain cancer in children and adults, respectively. Signals that drive expansion of developmentally defined neural precursor cells are also active in corresponding brain tumors. Transcriptomal subgroups of human medulloblastoma and glioma match features of NSCs but also more restricted progenitors. Lessons from genetically-engineered mouse (GEM) models show that temporally and regionally defined NSCs can give rise to distinct subgroups of medulloblastoma and glioma. We will further discuss how acquisition of stem cell features may drive brain tumorigenesis from a non-NSC origin. Genetic alterations, signaling pathways, and therapy-induced changes in the tumor microenvironment can drive reprogramming networks and induce stemness in brain tumors. Finally, we propose a model where dysregulation of microRNAs (miRNAs) that normally provide barriers against reprogramming plays an integral role in promoting stemness in brain tumors.
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| 6. |
- Swartling, Fredrik J., 1975-, et al.
(författare)
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What underlies the diversity of brain tumors?
- 2013
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Ingår i: Cancer Metastasis Review. - : Springer. - 0167-7659 .- 1573-7233. ; 32:1-2 (SI), s. 5-24
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Forskningsöversikt (refereegranskat)abstract
- Glioma and medulloblastoma represent the most commonly occurring malignant brain tumors in adults and in children, respectively. Recent genomic and transcriptional approaches present a complex group of diseases and delineate a number of molecular subgroups within tumors that share a common histopathology. Differences in cells of origin, regional niches, developmental timing, and genetic events all contribute to this heterogeneity. In an attempt to recapitulate the diversity of brain tumors, an increasing array of genetically engineered mouse models (GEMMs) has been developed. These models often utilize promoters and genetic drivers from normal brain development and can provide insight into specific cells from which these tumors originate. GEMMs show promise in both developmental biology and developmental therapeutics. This review describes numerous murine brain tumor models in the context of normal brain development and the potential for these animals to impact brain tumor research.
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| 7. |
- Hägglöf, Christina, et al.
(författare)
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The stroma : a key regulator in prostate function and malignancy
- 2012
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Ingår i: Cancers. - : MDPI. - 2072-6694. ; 4:2, s. 531-548
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Forskningsöversikt (refereegranskat)abstract
- Prostate cancer is a very common and highly unpredictable form of cancer. Whereas many prostate cancers are slow growing and could be left without treatment, others are very aggressive. Additionally, today there is no curative treatment for prostate cancer patients with local or distant metastasis. Identification of new, improved prognostic and diagnostic biomarkers for prostate cancer and the finding of better treatment strategies for metastatic prostate cancer is therefore highly warranted. Interactions between epithelium and stroma are known to be important already during prostate development and this interplay is critical also in development, progression of primary tumors and growth of metastases. It is therefore reasonable to expect that future biomarkers and therapeutic targets can be identified in the prostate tumor and metastasis stroma and this possibility should be further explored.
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| 8. |
- Walenkamp, Annemiek, et al.
(författare)
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Hallmarks of gastrointestinal neuroendocrine tumours : implications for treatment
- 2014
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Ingår i: Endocrine-Related Cancer. - 1351-0088 .- 1479-6821. ; 21:6, s. R445-R460
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Forskningsöversikt (refereegranskat)abstract
- In the past few years, there have been advances in the treatment of neuroendocrine tumours (NETs) and improvements in our understanding of NET biology. However, the benefits to patients have been relatively modest and much remains yet to be done. The 'Hallmarks of Cancer', as defined by Hanahan and Weinberg, provide a conceptual framework for understanding the aberrations that underlie tumourigenesis and to help identify potential targets for therapy. In this study, our objective is to review the major molecular characteristics of NETs, based on the recently modified 'Hallmarks of Cancer', and highlight areas that require further research.
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| 9. |
- Pascoe, Liz, et al.
(författare)
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Benefit finding in cancer : A review of influencing factors and health outcomes
- 2013
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Ingår i: European Journal of Oncology Nursing. - : Elsevier. - 1462-3889 .- 1532-2122. ; 17:6, s. 760-766
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Forskningsöversikt (refereegranskat)abstract
- Purpose: Emerging research is revealing that the use of positively-oriented coping efforts may be beneficial to people living with and beyond cancer treatments. Benefit finding is such a positively-oriented coping strategy suggested to influence psychological and physical health outcomes, but the empirical evidence for these suggestions is unclear. This study aimed to review the existing evidence on factors that influence the use of benefit finding, and the associated health outcomes in cancer. Methods: Searches were undertaken in established databases. Studies were reviewed if published between January 1980 and June 2012. The search terms 'benefit finding', 'coping', 'positive emotions', and 'neoplasms' were used in various combinations. Ten studies were included in the Review. Results: Optimism was the only influencing factor that was consistently supported by evidence in the literature (n = 5/10). For health outcomes, physiological stress-response biomarkers of enhanced immune function were associated with benefit finding (n = 2/10). Inconsistent evidence were found between benefit finding and social support, and between benefit finding and psychological outcomes. Conclusions: There is inconclusive evidence to date to conclude that certain factors influence the use of benefit finding in cancer populations, or that benefit finding is clearly associated with any particular health outcomes. There is beginning evidence to conclude that optimism is related to benefit finding, and that benefit finding is associated with reduced physiological stress-response biomarkers. Further research is needed to explore predictors, co-variates, associations and clinical outcomes of benefit finding in cancer populations.
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| 10. |
- Ratasvuori, Maire, et al.
(författare)
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Insight opinion to surgically treated metastatic bone disease: Scandinavian Sarcoma Group Skeletal Metastasis Registry report of 1195 operated skeletal metastasis
- 2013
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Ingår i: Surgical Oncology. - : Elsevier BV. - 0960-7404 .- 1879-3320. ; 22:2, s. 132-138
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Forskningsöversikt (refereegranskat)abstract
- The number of cancer patients living with metastatic disease is growing. The increased survival has led to an increase in the number of cancer-induced complications, such as pathologic fractures due to bone metastases. Surgery is most commonly needed for mechanical complications, such as fractures and intractable pain. We determined survival, disease free interval and complications in surgically treated bone metastasis. Data were collected from the Scandinavian Skeletal Metastasis Registry for patients with extremity skeletal metastases surgically treated at eight major Scandinavian referral centres between 1999 and 2009 covering a total of 1195 skeletal metastases in 1107 patients. Primary breast, prostate, renal, lung, and myeloma tumors make up 78% of the tumors. Number of complications is tolerable and is affected by methods of surgery as well as preoperative radiation therapy. Overall 1-year patient survival was 36%; however, mean survival was influenced by the primary tumor type and the presence of additional visceral metastases. Patients with impending fracture had more systemic complications than those with complete fracture. Although surgery is usually only a palliative treatment, patients can survive for years after surgery. We developed a simple, useful and reliable scoring system to predict survival among these patients. This scoring system gives good aid in predicting the prognosis when selecting the surgical method. While it is important to avoid unnecessary operations, operating when necessary can provide benefit. (C) 2013 Elsevier Ltd. All rights reserved.
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